Transom-lifter.



J. H. GARTNER.

TRANSOM LIFTER.

APPLICATION FILED MAY 11, 1912.

Patented Oct. 29, 1912.

2 SHEETS-SHEET 1.

nwnr WITNESSES w ATTORNEYS J. H. GARTNER.

TRANSOM LIFTER.

APPLIOATION FILED MAY 11, 1912.

Patented Oct. 29, 1912.

2 SHEETS-SHEET 2.

WITNESSES ATTORNEYS JOHN H. G-AR'INER, 0F IE'OCA TELI O, IDAHO.

- TRANSOM-LIFTER.-

Specification of- Letters Patent.

Application filed ma 11, 1912. seri l No. 696,623.-

To all whom it may concern:

Be it known that I, JOHN H. GARTNER, a sub ect of the Emperor of Austria-Hungary,

and a resident of Pocatello, in the county of Bannock and State of Idaho, have invented an Improvement in Transom-Lifters, of which the following is a specification.

In my inventiona vertically slidable rod is employed as in a common and well known variety of transom-lifters, but the upper end of the same is connected with the transom proper by means of a spring, which is held slidably in a curved guide attached to the door casing; and the rod is operated, that is to say, adjusted vertically, and locked in any position, by improved means.

The details of construction, arrangement, and operation of the invention are as hereinafter described, and illustrated in the acoompanying drawings, in which' Figure l is a face view of a doorand transom showing my invention applied. Fig. 2 is a side view of the-same. Fig. 3- is an enlarged section of the invention including aportion of the door casing. Fig. 4 is a perspective view of a curved guide for the spring which connects the sliding rod with the transom proper. Fig. 5 is a cross section on the line 55 of Fig. 3. Fig. 6 is a perspective view of certain elements of the mechanism employed for adjusting the slidable rod. F ig..7 is a cross section on the line 7-7 of Fig. 3. Fig. 8 is a section on the line 8-8 of Fig. 3.

Referring in the first instance to Figs. 1

and 2, 00 indicates the transom, which is hinged at the lower edge and above a door y,

while 2 indicates the door-casing to which my lifter is applied.

The vertically slidable rod 1 is guided in a bracket 2, and a plate or ribbon spring 3.

of due strength is secured to the upper end of the rodand serves" as the means of direct connection between the rod and the transom,

m Thelower end of the spring 3is inserted .in a cleft in the rod 1 and secured by a cross-pin, as shown in Fig.3. The u per end of the spring is formed as .a loop-see Fig. 3a nd it is applied detachably to thelaterally bent arm 4 of a bracket having a base 5 which is screwed to the transom as shown in Fig. ,1.

The bracket 2 maybe formed of cast metal or of plate metal struck up in dies.- Its lower end is provided with screw-holes and its upper end with inwardly projecting arms 25 'whose inner ends are bent ata right angle and provlded'with screw-holes for attachment of the bracket to the door-casing a,

as shown in Figs. 1 and 3. The curved face of'thebracket is smooth save the three projections 2 which are in the nature of loops adapted to hold-and guide the spring 3 in its sliding movement. These loops may be preferablyformed by striking up from the body'of the bracket or they may be cast integrally'therewith. As shown, the upper end of thebracket projects forward from the door casing, and therefore it also projects forward of the Figs. 2v and 3.

It is apparent that, by adjusting the-rod 1 vertically upward, the spring will push transom, as shown in against the arm 4 of the bracket attached to the transom and thereby throw the transom forward on its hinges, as shown by dotted lines in Fig. 2, thus opening the transom to a corresponding extent. 'As shown by dotted lines in said figure, the upper endof the spring describes a short curve when this adjustment is made. On the otherhand, by

pullingdown. on the rod 1, the spring will obviously draw the transom back to the -closed position. effected, for the spring slides easily-1n the This operation is easily bracket 2.

Itwill be understood-that while I illustrate the transom as hinged at the bottom,

it may be hinged at the top or pivoted at the middle, and my improved lifter may be applied to these forms with equal facillty.

The means for adjusting'the slidable rod 1 are as follows: The rod passes through a tubular rack 6see Figs. 7 and 8to Which it is secured by a pin 7. This rack is guided in a casingv 8 that is provided with apertured lugs 9," as shown in Fig. 7, which are adapted to receive screws for securlng it to the door casing'e. A pinion 10see Fig.

-8is pivoted in -the casing 8 and meshes with the rack 6. This pinion is mounted on a short polygonal shaft 11see Figs. 3 and 6-which has its bearings in the casing 8 and also in thetubular shank 12 of a knob 13.

Such shank is adapted to slide through an opening in the front of the casing 8, and on its inner end is fixed a disk or collar l4 see Figs. 3 and 6which disk is provided with pins "15 projecting from its outer side and adapted to enter holes 16in the front of 'the-casing 8. A spiral'sprlng 17 is arranged infthe tubular shank of the knob 13 between the head of said knob and the short 4 or stub shaft 11 and tends to press the knob outward so as to hold the disk pins normally engaged with the casing. The bore in the shank 12 of the knob is rectangular, so that the shaft 11 must rotate therewith. It will now be apparent that, normally, the pinion 10 is locked and thus holds the adjusting rod 1 fixed in any position to which it maybe adjusted, with the transom either closed, or open more or less. In order to adjust the rod and thereby the transom, it is necessary to push inward against the knob 13 and thus force it into the position indicated by dotted lines in Fig. 3, such operation being of course resisted by the spring 17 By such adjustment, the locking disk 14 is freed from engagement with the casing 8 and thus the stub shaft 11 may be rotated as required.

In other-words, when the knob is pressed in-- ward and then rotated, the pinion 10 will adjust the rod 1 up or down as may be required to open or close the transom.

What I claim is 1. The combination with a hinged transom and avvertically adjustable rod,'of a plate spring connecting them, a fixed guide for the spring, the same having a curved face and provided with means for holding the spring to said face, as described. 2. The combination with a hinged transom and a vertically slidable rod, of a spring connecting them, and a guide arranged intermediately of the transom and rod and consisting of a bracket having a curved face and integral loops for holding the spring to the face, as described.

3. In a transom lifter, the guide for a spring forming part of said lifter, the same consisting of a bracket having a curved face provided with means for holding the spring in its sliding movement, the bracket being also provided at the upper end with rearward projections adapted to be secured to a door casing, substantially as described.

4. The combination with a transom rackrod, a pinion'engaging it, and a casing inclosing them, of a polygonal shaft whereon the pinion is mounted, a knob having a hollow shank whose polygonal socket receives the shaft, the inner end of the same having its bearing in the casing, a spiral spring arranged in the hollow shank and bearing against the knob and shaft, and a locking disk having outwardly -p roj ecting pins which normally engage the casing when the spring is expanded the hollow shank being slidable in the casing and on the shaft, as described.

JOHN H. GARTNER. Witnesses:

E. G. FRISOHKE, J on KOSH. 

